IAU 2000A precession-nutation model
E1408363
UNEXPLORED
The IAU 2000A precession-nutation model is a high-precision astronomical standard that mathematically describes the long-term and short-term changes in the orientation of Earth's rotation axis in space.
All labels observed (1)
| Label | Occurrences |
|---|---|
| IAU 2000A precession-nutation model canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T20064003 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: IAU 2000A precession-nutation model Context triple: [IAU 2000 resolutions, includes, IAU 2000A precession-nutation model]
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A.
IERS Conventions
IERS Conventions are a set of internationally recognized technical standards and models that define how to precisely measure and reference Earth’s rotation, orientation, and reference frames for geodesy and astronomy.
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B.
IAU 1976 system of astronomical constants
The IAU 1976 system of astronomical constants is a standardized set of numerical values and definitions adopted by the International Astronomical Union to ensure consistency in celestial mechanics, timekeeping, and other astronomical calculations.
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C.
IERS Bulletin A
IERS Bulletin A is a regularly issued publication by the International Earth Rotation and Reference Systems Service that provides rapid updates and predictions of Earth orientation parameters and time scale differences such as UT1–UTC.
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D.
International Celestial Reference System
The International Celestial Reference System is the standard, high-precision coordinate framework used in astronomy and geodesy to define positions of celestial objects relative to distant quasars.
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E.
Earth Orientation Parameters
Earth Orientation Parameters are a set of time-varying values that precisely describe the irregular rotation and orientation of the Earth in space for applications like navigation, astronomy, and geodesy.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: IAU 2000A precession-nutation model Target entity description: The IAU 2000A precession-nutation model is a high-precision astronomical standard that mathematically describes the long-term and short-term changes in the orientation of Earth's rotation axis in space.
-
A.
IERS Conventions
IERS Conventions are a set of internationally recognized technical standards and models that define how to precisely measure and reference Earth’s rotation, orientation, and reference frames for geodesy and astronomy.
-
B.
IAU 1976 system of astronomical constants
The IAU 1976 system of astronomical constants is a standardized set of numerical values and definitions adopted by the International Astronomical Union to ensure consistency in celestial mechanics, timekeeping, and other astronomical calculations.
-
C.
IERS Bulletin A
IERS Bulletin A is a regularly issued publication by the International Earth Rotation and Reference Systems Service that provides rapid updates and predictions of Earth orientation parameters and time scale differences such as UT1–UTC.
-
D.
International Celestial Reference System
The International Celestial Reference System is the standard, high-precision coordinate framework used in astronomy and geodesy to define positions of celestial objects relative to distant quasars.
-
E.
Earth Orientation Parameters
Earth Orientation Parameters are a set of time-varying values that precisely describe the irregular rotation and orientation of the Earth in space for applications like navigation, astronomy, and geodesy.
- F. None of above. chosen
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.